A) 50 B) 60 C) 51 D) 23
A) 7 B) 1 C) 3 D) 17
A) 9 B) 45 C) 103 D) 5
A) 3 B) 15 C) 4 D) 33
A) Alkaline Earth Metals B) Halogens C) Transition Metals D) Noble Gases E) Alkali Metals
A) 14.007 B) 7 C) 2 D) 14
A) 2 B) 137 C) 56 D) 6
A) 7 B) 1 C) 6 D) 2
A) Mercury is a solid metal. B) Tellurium is a solid metalloid. C) Chlorine is a liquid non-metal. D) Phosphorus is a non-metal gas.
A) 5 B) 96 C) 6 D) 42
A) 2 B) 4 C) 7 D) 3
A) proton/+, electron/-, neutron/uncharged B) proton/+, electron/neutral, neutron/- C) proton/+, neutron/-, electron/no charge D) proton/-, electron/+, neutron/no charge
A) protons and electrons B) protons and orbits C) protons and neutrons D) neutrons and electrons
A) Phosphorus and Silicon B) Carbon and Boron C) Argon and Krypton D) Mercury and Thallium
A) the atom is mostly empty space B) electrons orbit totally randomly around the nucleus C) the atom is a positively charged sphere with electrons embedded in it D) atoms are tiny solid spheres
A) region B) period C) nucleus D) group
A) Magnesium B) Lithium C) Chlorine D) Beryllium
A) period number B) number of neutrons C) group number D) number of protons
A) the mass number minus the atomic number B) the same as the number of electrons C) the same as the number of energy levels D) greater than the mass number
A) Number of Neutrons B) Group Number C) State of Matter D) Period Number
A) Nitrogen B) Manganese C) Francium D) Carbon
A) Yes, some Carbon atoms have 6 protons, some have 7 protons. B) No, every single Carbon atom has exactly 6 protons. An atom's atomic number gives it its identity.
A) By adding or losing electrons B) by adding electrons C) by adding protons D) by losing protons
A) by adding protons B) by adding electrons C) by losing electrons D) by losing protons
A) by losing protons B) by losing electrons C) by adding protons D) by adding electrons
A) by adding neutrons B) by adding or losing neutrons C) by adding electrons D) by adding protons
A) mass number divided by 2 B) same as the atomic number C) difference between the atomic and mass number D) same as the mass number
A) the same as the number of neutrons B) the same as the atomic number C) the same as the mass number D) the difference between the mass and atomic number
A) Mg and F B) Hg and C C) B and O D) Na and Li
A) Mg and Cl B) Li and Po C) F and At D) Ba and Ra
A) The halogens B) The alkali metals C) The noble gases D) The transition metals E) The alkali earth metals
A) The alkali metals B) The noble gases C) The halogens D) The transition metals
A) 8 B) 17 C) 4 D) 1 E) 18
A) how many electrons there are B) how many electron levels there are C) how reactive they are D) how many protons there are
A) how many electrons the atom has B) how many valence electrons the atom has C) the number of neutrons D) the number of protons
A) Silver B) Iron C) Mercury D) Fluorine E) Sodium
A) H B) Al C) Au D) Li E) F
A) I B) Al C) Mg D) Cs E) Li
A) the number of protons B) the number of neutrons C) the number of electrons
A) Newton B) Lewis C) Bohr D) Mendeleev E) Dalton |